Patents by Inventor David Joseph Dickerson

David Joseph Dickerson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of controlling the amount of Cu doping when forming a back contact of a photovoltaic cell
    Patent number: 9117956
    Abstract: Methods for preparing an exposed surface of a p-type absorber layer of a p-n junction for coupling to a back contact in the manufacture of a thin film photovoltaic device are provided. The method can include: applying a treatment solution onto the exposed surface defined by the p-type absorber layer of cadmium telluride; and annealing the device with the p-type absorber layer in contact with the treatment solution to form a tellurium-enriched region in the p-type absorber layer at the exposed surface. The treatment solution comprises a chlorinated compound component that is substantially free from copper, a copper-containing metal salt, and a solvent.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 25, 2015
    Assignee: First Solar, Inc.
    Inventors: Laura Anne Clark, Tammy Jane Lucas, Wyatt Keith Metzger, Samuel H. Demtsu, David Joseph Dickerson, Laura Jean Wilson, Mehran Sadeghi
  • METHOD OF CONTROLLING THE AMOUNT OF Cu DOPING WHEN FORMING A BACK CONTACT OF A PHOTOVOLTAIC CELL
    Publication number: 20140065762
    Abstract: Methods for preparing an exposed surface of a p-type absorber layer of a p-n junction for coupling to a back contact in the manufacture of a thin film photovoltaic device are provided. The method can include: applying a treatment solution onto the exposed surface defined by the p-type absorber layer of cadmium telluride; and annealing the device with the p-type absorber layer in contact with the treatment solution to form a tellurium-enriched region in the p-type absorber layer at the exposed surface. The treatment solution comprises a chlorinated compound component that is substantially free from copper, a copper-containing metal salt, and a solvent.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: PRIMESTAR SOLAR, INC.
    Inventors: Laura Anne Clark, Tammy Jane Lucas, Wyatt Keith Metzger, Samuel H. Demtsu, David Joseph Dickerson, Laura Jean Wilson, Mehran Sadeghi